Wherever you are - be all there.
To know oneself, one should assert oneself.
The dog that trots about finds a bone.
What you do today can improve all your tomorrows.
The secret of getting ahead is getting started.
Only the educated are free.
Leap, and the net will appear.
Be kind whenever possible. It is always possible.
If you've got a talent, protect it.
Do not weep do not wax indignant. Understand.
I have taught history on the high school and college levels, and am or have been a lecturer at the Smithsonian, The National Institutes of Health, and numerous colleges and universities, mostly on science fiction and technology subjects.